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<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2014 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: CollectionSchemaField.html 842 2015-03-07 18:20:42Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.jsimpledb.schema;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.util.Collections;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.util.Map;<a name="line.11"></a>
<span class="sourceLineNo">012</span><a name="line.12"></a>
<span class="sourceLineNo">013</span>import javax.xml.stream.XMLStreamException;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import javax.xml.stream.XMLStreamReader;<a name="line.14"></a>
<span class="sourceLineNo">015</span><a name="line.15"></a>
<span class="sourceLineNo">016</span>import org.jsimpledb.core.CollectionField;<a name="line.16"></a>
<span class="sourceLineNo">017</span>import org.jsimpledb.util.Diffs;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>/**<a name="line.19"></a>
<span class="sourceLineNo">020</span> * A collection field in one version of a {@link SchemaObjectType}.<a name="line.20"></a>
<span class="sourceLineNo">021</span> */<a name="line.21"></a>
<span class="sourceLineNo">022</span>public abstract class CollectionSchemaField extends ComplexSchemaField {<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>    private SimpleSchemaField elementField;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>    public SimpleSchemaField getElementField() {<a name="line.26"></a>
<span class="sourceLineNo">027</span>        return this.elementField;<a name="line.27"></a>
<span class="sourceLineNo">028</span>    }<a name="line.28"></a>
<span class="sourceLineNo">029</span>    public void setElementField(SimpleSchemaField elementField) {<a name="line.29"></a>
<span class="sourceLineNo">030</span>        this.elementField = elementField;<a name="line.30"></a>
<span class="sourceLineNo">031</span>    }<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span>    @Override<a name="line.33"></a>
<span class="sourceLineNo">034</span>    public Map&lt;String, SimpleSchemaField&gt; getSubFields() {<a name="line.34"></a>
<span class="sourceLineNo">035</span>        return Collections.&lt;String, SimpleSchemaField&gt;singletonMap(CollectionField.ELEMENT_FIELD_NAME, this.elementField);<a name="line.35"></a>
<span class="sourceLineNo">036</span>    }<a name="line.36"></a>
<span class="sourceLineNo">037</span><a name="line.37"></a>
<span class="sourceLineNo">038</span>    @Override<a name="line.38"></a>
<span class="sourceLineNo">039</span>    void readSubElements(XMLStreamReader reader, int formatVersion) throws XMLStreamException {<a name="line.39"></a>
<span class="sourceLineNo">040</span>        this.elementField = this.readSubField(reader, formatVersion, CollectionField.ELEMENT_FIELD_NAME);<a name="line.40"></a>
<span class="sourceLineNo">041</span>        this.expectClose(reader);<a name="line.41"></a>
<span class="sourceLineNo">042</span>    }<a name="line.42"></a>
<span class="sourceLineNo">043</span><a name="line.43"></a>
<span class="sourceLineNo">044</span>// DiffGenerating<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span>    protected Diffs differencesFrom(CollectionSchemaField that) {<a name="line.46"></a>
<span class="sourceLineNo">047</span>        final Diffs diffs = new Diffs(super.differencesFrom(that));<a name="line.47"></a>
<span class="sourceLineNo">048</span>        final Diffs elementDiffs = this.elementField.differencesFrom(that.elementField);<a name="line.48"></a>
<span class="sourceLineNo">049</span>        if (!elementDiffs.isEmpty())<a name="line.49"></a>
<span class="sourceLineNo">050</span>            diffs.add("changed element field", elementDiffs);<a name="line.50"></a>
<span class="sourceLineNo">051</span>        return diffs;<a name="line.51"></a>
<span class="sourceLineNo">052</span>    }<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span>// Object<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span>    @Override<a name="line.56"></a>
<span class="sourceLineNo">057</span>    public String toString() {<a name="line.57"></a>
<span class="sourceLineNo">058</span>        return super.toString() + (this.elementField != null ? " with element " + this.elementField : "");<a name="line.58"></a>
<span class="sourceLineNo">059</span>    }<a name="line.59"></a>
<span class="sourceLineNo">060</span><a name="line.60"></a>
<span class="sourceLineNo">061</span>    @Override<a name="line.61"></a>
<span class="sourceLineNo">062</span>    public boolean equals(Object obj) {<a name="line.62"></a>
<span class="sourceLineNo">063</span>        if (obj == this)<a name="line.63"></a>
<span class="sourceLineNo">064</span>            return true;<a name="line.64"></a>
<span class="sourceLineNo">065</span>        if (!super.equals(obj))<a name="line.65"></a>
<span class="sourceLineNo">066</span>            return false;<a name="line.66"></a>
<span class="sourceLineNo">067</span>        final CollectionSchemaField that = (CollectionSchemaField)obj;<a name="line.67"></a>
<span class="sourceLineNo">068</span>        return this.elementField != null ? this.elementField.equals(that.elementField) : that.elementField == null;<a name="line.68"></a>
<span class="sourceLineNo">069</span>    }<a name="line.69"></a>
<span class="sourceLineNo">070</span><a name="line.70"></a>
<span class="sourceLineNo">071</span>    @Override<a name="line.71"></a>
<span class="sourceLineNo">072</span>    public int hashCode() {<a name="line.72"></a>
<span class="sourceLineNo">073</span>        return super.hashCode() ^ (this.elementField != null ? this.elementField.hashCode() : 0);<a name="line.73"></a>
<span class="sourceLineNo">074</span>    }<a name="line.74"></a>
<span class="sourceLineNo">075</span><a name="line.75"></a>
<span class="sourceLineNo">076</span>// Cloneable<a name="line.76"></a>
<span class="sourceLineNo">077</span><a name="line.77"></a>
<span class="sourceLineNo">078</span>    @Override<a name="line.78"></a>
<span class="sourceLineNo">079</span>    public CollectionSchemaField clone() {<a name="line.79"></a>
<span class="sourceLineNo">080</span>        final CollectionSchemaField clone = (CollectionSchemaField)super.clone();<a name="line.80"></a>
<span class="sourceLineNo">081</span>        clone.elementField = this.elementField.clone();<a name="line.81"></a>
<span class="sourceLineNo">082</span>        return clone;<a name="line.82"></a>
<span class="sourceLineNo">083</span>    }<a name="line.83"></a>
<span class="sourceLineNo">084</span>}<a name="line.84"></a>
<span class="sourceLineNo">085</span><a name="line.85"></a>




























































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